<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>打字机</title>
<style type="text/css">
	.mybox {
	height:40px;
	border:5px solid #ddd;
	font-size:25px;
}
</style>

</head>

<body>
<div class="mybox">
</div>
</body>
</html>
